You can install our site as a web app on your iOS device by utilizing the Add to Home Screen feature in Safari. Please see this thread for more details on this.
Note: This feature may not be available in some browsers.
You might be better off to rely on reading this forum every now and then under the "LA to Phoenix Corridor" in the Supercharger section. I doubt anyone will phone, but those who watch that corridor post pictures and information that often predates the opening of a Supercharger station by weeks.
Secondly, it is only rumor that the next Supercharger on that corridor might be in Indio. Only "he said". It could well be in Palm Springs, where you live. it may be in Cabazon or Thousand Palms.